Improvement in heating railroad-cars



J. W. GRAYDON. Heating Railroad-Oars.

No. 209,166. Patented on.- 22, 1878'.

U] 1167108838 Ina/e nQor W I 9 W NPEI'ERS. PHOTO LITHDGRAPHER,WASHINGTON I! C UNITED STATES PATENT, OFFICE.-

JAMES W. GRAYDON, OF W'ASHINGTON, DISTRICT OF COLUMBIA.

'IMPROVEMENT IN HEATING RAILROAD-CARS.

Specification forming part of Letters Patent N0. 209,166, dated October22, 1878 application filed- September 21, 1878.

To all whom it may concern:

Be it known that I, J AlVEES W. GRAYDON, of Washington, District ofColumbia, have invented a new and useful Improvement in Methods forHeating Railroad-Oars, which improvement is more particularly designedto apply to the heating by steam of passengercars, stages, sleighs, andother vehicles drawn or propelled by other power than steam, the samebeing fully set forth in the following specification and drawings, inwhich- Figure 1 represents a horizontal section of a street-car. Fig. 2is a vertical cross-section of a portion of a car, showing reservoir Runderneath the seat, valves V V, coupling 0,

- joints A A, lever L, and the pipe leading to the generator. Fig. 3 isa vertical cross-section through a water-receiver, WV, located in thefloor of car, provided with a spring-valve, S, and a portion of pipeleading to the heatingcoil H.

My invention consists in a steam-generator from which steam is takenand, by means of v a compress-pump, supplied at a very high pressure,through my metallic joints and coupling, (patented May-14, 1878, No.203,611,) to a reservoir placed in any convenient part of the vehicle,when the steam in the generator is of sufficient pressure without theaid of a compress-pump.

From this reservoir the steam is supplied from time to time to theheating-pipes placed over the floor ot' the vehicle at a sufficientpressure to give the required warmth, and this supply of steam iscontrolled by means of a valve in the pipe connecting the reservoir withthe heating-pipes. The reservoir being supplied with steam at a veryhigh pressure,

there will always be suflicient steam to feed to the heatingpipes whenthe car is away from the steam-generator. This reservoir is so protectedas to prevent the radiation of the heat from the steam as much aspossible.

At each end of the car, located in the floor, and connected with theheating-pipes, is a small water-receiver, which receives what Water isformed by the condensation of the steam.

similar letters of reference indicate like parts,

R is areservoir placed under the seat. H are heating-pipes placed overthe floor of the car, with light wooden gratings Grover them. W W aresmall water-receivers, located in the floor to receive and discharge thewater resulting from condensation. F is the feedvalve, which controlsthe flow of steam from the reservoir to the heating-pipes. AA, VV,

and O are my flexible metallic joints and couplin gs.

This fieXiblesteam-pipe is operated by means of the lever L whenconnecting or disconnectin g the pipe leading from the steam-generatorto the reservoir.

As shown in Fig. 3, the valve is held in its seat by spring S, and isarranged to operate at a certain pressure, either by steam in thewater-receiver or by hand from without, and in each case the waterresulting from condensation is discharged.

I am aware that cars and other vehicles have been heated by steam, andtherefore do not claim the devices heretofore used.

What I claim in a heating apparatus as new, and desire to secure byLetters Patent,'is

l. The combination of the steam-generator, joints, coupling, lever,valves, steam-reservoir,

heating-pipes, and water-receivers, arranged substantially as described,and for the'purpose set forth.

.2. The water-receiver located in the carfloor, and provided with thespring-valve, in combination with the heating-coil and reservoir,substantially as described.

JAMES IV. GRAYDON.

Witnesses:

W. W. McOULLoUGH, L. MoGULLoUeH.

